Combined eraser and pencil



'da l Patented sept. 19, 1939 UNITED STATES PATENT Aori-"1er:

2,179,361 COMBINED EaAsEn. PENCIL Edmund Morgan Gorrell, Columbus, OhioApplication october 21, 1937, seriarNo. 111,314 zo claims.' (ci. 12o-ss)proved and simplied means whereby a long piece or stick of lead orwriting material can be fed into the desired working position atl oneend of a sheath or handle and a long stick or piece of eraser fed intodesired working position at the opposite end of the sheath or handle,and improved mechanism whereby either of said implementscan be fedindependently of the other. Other objects will appear fromthe disclosureherein. y One example of the invention is herein shown and set forth inthe following'description, the feature of novelty being pointed out inthe claims.

In the accompanying drawing- Figure 1 is mainly a central longitudinalsec-` A .25 tional view of the device, with parts in full.

Fig. 2 is a view on a magnie'd scale of the feeding mechanism removedfrom the sheath with A 30 Fig. 1 .enlarged and looking to the left.

- Fig. 4 is a cross section on the line IV-IV Fig. l enlarged andlooking to the left. l

Fig. 5 is an enlarged end view of the eraser holder and looking to theleft at the right hand end of Fig. 1.

Fig. 6 is a detail view in side elevation of the eraser holder removedfrom the sheath.

In the views the character 'I designates the` main sheath or shell. Inone end of said shell is 40 the eraser holder 8, said holder having aVtubular extension 9 provided with diametrically opposed longitudinalslots I0. The eraser h'older is provided at its discharge end withinternal 'ribs II extending longitudinally, said ribs` adapted toon the'inner end of the stick or eraser to cause outward movement thereof, saidstick will not be 55 expanded into troublesome frictional contact withthe wall of the holder but'will slide easily on the ribs II. The saidribs II are of such depth in relation to the bore of the holder that inpractice they penetrate by depression the surface of the eraser to holdit from turning when used for o erasing purposes and also prevent thelongitudinal slipping of the rubber except when adequate vforce isapplied thereto by the ram .to cause such longitudinal slipping. o

Within the tubular` extension 9 is an internally 10 threaded tube I3having on its exterior lugs I4 that extend into and iit in the slots II)so that when the eraser holder is turned said tube I3 is rotated. Theinternally screw threaded tube VI3 engages the external screw thread ofa tube 15 I5 of smaller diameter so that when the tube I3 is rotated byturningl the eraser holder 8 said tube I3 is fed longitudinally, andwhenthe eraser holder is turned in the proper direction with competent powerthe tube I3 acts as a ram to feed 20 or force the eraser I2 outward orin the projecting or discharging direction.

If it happens that the erasing end of said stick is projected too farthe ram can be adjusted by reverse movement thereof and thereby permitthe stick to be pushed inward by external pressure to eilect the desiredprojection of the Working end of the eraser,

'I'he aforesaid tube I5 is also screw threaded internally and engagingthe said internal screw thread is ascrew threaded portion I 6a of a rodor ram I6. The tube I5 is provided with an annuy lar flange I5 by meansof which it is secured to the pencil end of the sheath so that said tubeI5 is heldin fix'ed longitudinal relationfto the sheath 35 1. The ram I6is provided with lugsll'l that fit and project into parallel grooves I8,I8, extending longitudinally in the lead holder I9.

The said lead holder I9 is connected by a'suitable ,loint with the otherend of the pencil shell or 40 sheath I and can be rotated and uponturning said. lead holder with respect to the sheath 1 the ram or rodI6, and, of course, the threaded portion I6a thereof .is thereby rotatedby the pressure on the lugs I1, thus causing the longitudinal feedingmovement of said rod or ram in one direction or the other according tothe direction inwhich the lead-holder is turned.

'I'he character 20 designates a stick of lead or i other suitablewriting or marking material placed v'in the holderl and held yieldinglymo'vable in said holder by means of suitable penetrating or pinch'- ingriing at I9a in the end of the holder.I When the pencil ram II to pressagainst `the inner end of the said stick and thereby cause the furtherprojection thereof. If it happens that the point of the said stick beprojected too far the ram can be adjusted by rotating it in the reversedirection and thereby permit the stick to be pushed inward by externalpressure thereon in the longitudinal direction thereof.

Because the tube i5 is secured to the sheath it will be observed thatthe said tube I5 serves as a purchase for the operation of the threadedtube to operate the ram for feeding the eraser as well as the purchasefor the operation of the lead feeding ram. It will therefore be obviousthat the lead holder or the eraser holder can be held while the sheathis turned or the sheath can be held while either of said holders isturned to effect the feeding of the eraser or the lead as thecase maybe. By reason of the telescopic arrangement of the parts, I3, l5 andI6'L both the lead or writing instrument and eraser can be long withoutunduly extending the length of the instrument as a whole. y

The forn and dimensions of the instrumentalities employed in theconstruction herein shown and described can be changed without gist ofthe invention as engaging one of the threads of said internally andexternally threaded member to directly engage and feed'the erasingmember, and a ram engaging the other of said threads to directly engageand feed actuate the writing member.

' 3. In a combined writing and erasing instru.-

' ment, a sheath, a friction holder for the writing.

member and a friction holder forv the erasing member, a tubular memberinternally and externally screw threaded on the same cross-sectionsconnected with said sheath, feeding rams directly engaging said writingand erasing members, one of said -rams actuated by the external threadof said internally and externallyfthreaded member andthe other actuatedby the internal thread thereof.

4. In a combined writing and verasing instrument, a sheath, a holder forthe erasing member and a holder for the writing member, a tubular memberinternally and externally screw Vthreaded on the same' cross sectionsconnected lwith said sheath, aV feeding ram for said erasing memberconsisting of an internally threaded tube engaging the external threadof said internally and externally threaded member and a feeding ram forthe writing member consistingv of a rod having a threaded portion ,engithe internal thread of said internally andexternally threaded member.

5. In a combined writing and erasinginstrument, a sheath havingconnected therewith a holder for an erasing member and a holder for awriting member, said holders connected with said sheath for independentrotation of each with I holder is rotated in the proper direction tocause .sux-face, a holder for the implement rpect to the other,r atubular member internally and externally screw threaded on the samecross lsections in said sheath, a feeding ram for the erasing memberconsisting of an internally threaded tube engaging the external threadof the rst mentioned tubular member, and a feeding ram for the writingmember'consisting of a rod having a threaded vportion engaging theinternal thread of said rst mentioned tubular member, and meanscontrolled by said eraser holder whereby feeding movement of either ofsaid rams can be eil'ected.

6. In a combined writing and erasing instru.- ment, a tubular sheath, aneraser holder having a slotted tubular extension seated in one end ofsaid sheath. a tubular member internally and externally threaded `on`thesame cross-sections thereof secured in said sheath, an internal, screwthreaded ram distinct from the eraser member on said tubular member,said last named member having a non-rotative but sliding engagement withsaid sheath, a pencil. holder connected rotatingly with the opposite endof the said sheath, a ram for the pencil member distinct therefromhaving a threaded portion engaging the internal thread of the aforesaidinternally and externally4 threaded tubular member said pencil ramhaving a non-rotative but sliding engagement with respect said pencilholder.

7. In an erasing instrument the combination. of a'tubular casing, aholder for a stick of eraser, a tubular ram internally threaded,.arelatively fixed threaded means engaging said internally threaded ram,and means operated by the eraser vof a case, a holder for a stick oferaser, said 4,5

holder having a slotted extension entered in the casing, a tubularinternally threaded ram for said stick of eraser, provided with alateral extension engaging the slot of the said slotted extension and arelatively stationary means engaging the internal thread of the ramwhereby when the eraser holder is turned in one direction the stick oferaser is fed. 10. In an erasing' instrument the combination of atubular casing, an eraser holder rotatable in said casing, an externallythreaded member held in said casing, a ram for the eraser engaging saidexternally threaded member and the eraser holder whereby the eraser canbe fed by turning/ the eraser holder.. 60

11. Means of the kind described for feeding an implement including incombination, an external sheath having a substantially threadl interiorotatable within said threadless interior surface, a ram to feed theimplement in its holder and means operatedl by said holder for movingthe ram to feed the implement. z 12. Means o! the kind described forfeeding an 7o implement including in combination, an external sheathhaving a substantially threadless interior surface, a holder for theimplement within said. threadless interior surface, said implement beingmovable in its holder, a ram to feed the implement in its holder, andmeans operated by the holder to propel the ram and the implement.

13. Means of the kind described for feeding an implement including incombination, an extemal sheath having a substantially threadlessinterior surface, a holder for the implement within said threadlessinterior surface, a tubular ram to feed the implement in its holder, andmeans operated by the holder to propel the ram and the implement.

14. Means of the kind described for feeding an implement including incombination, an ex-f ternal sheath having a substantially threadless ramto feed the implement.

interior surface, a tubular holder for the implementI rotatable withinsaid threadless interior surface, a ram in said holder, and meansoperated by the holder for propelling the said ram and the implement.

15. Means of the kind described for feeding an implement including incombination., an external tubular sheath having 'a substantiallythreadless interior surface, a tubular holder for the implementrotatable within said threadless interior surface, a tubular ram in saidholder, and means operated by the -implement holder for moving the 16.Means of the kind described for feeding an implement including incombination, a external sheath having a substantially threadlessinterior surface, a ram for said implement slidable within saidthradlessrinterlor surface, and means operated by said sheath to propelthe ram.

17. Means of the kind described for feeding an implement including incombination, an external sheath having a substantially threadlessinterior surface, a holder for the implement 1 movable within saidthreadless interior surface, a ram to feed the implement in respect toits holder, and means operated by said holderfor movingthe ram to feedthe implement.

18. Means of the`kind described for feeding an implement including incombination, an eX- interior surface, a holder for the implement movablevwithin `said threadless interior surface, a

-holder having atits outer end means for frictionally clamping theimplement, and means operated by said holder for moving the ram to feedthe implement to working position.

20. Means of the kind described for feeding an yimplement including'incombination, an external sheath having a substantially threadlessinterior surface, a holder for rthe implement rotatableL with respect tosaid threadless surface, a threaded ram in said external casing to feedthe implement in its holder and threaded means engaging said threadedram operated by the implement holder for moving the ram to feed 'theimplement to Working position.

.trnal sheath having a substantially threadless' Y EDMUND MORGANGORREI'JL. l 35

